Performance of supercapacitor with electrodeposited ruthenium oxide film electrodes—effect of film thickness

Park, Bong-Ok; Lokhande, C.D.; Park, Hyung‐Sang; Jung, Kwang‐Deog; Joo, Oh‐Shim

doi:10.1016/j.jpowsour.2004.02.027

Cited by 169 publications

(78 citation statements)

References 10 publications

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“…SC values decrease progressively for all samples with an increase in current which is due to decrease in the efficiency of material utilization at high currents. This trend is similar to the literature reports on RuO 2 and MnO 2 [21,26,27]. When the discharge current is increased from 0.5 to 10 mA, SC value decreases to 7, 15 and 29 % of initial SC value The performance of supercapacitor at high loading level is another crucial factor for commercialization.…”

Section: Resultssupporting

confidence: 89%

Metal carbonates: alternative to metal oxides for supercapacitor applications? A case study of MnCO3 vs MnO2

Devaraj

Vardhan

Liu

et al. 2015

J Solid State Electrochem

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We report here the potential competency of MnCO 3 versus MnO 2 for supercapacitor applications. MnCO 3 was synthesized by a hydrothermal method using KMnO 4 as a manganese source and either sugar or pyrrole as carbon source. MnCO 3 synthesized using sugar and pyrrole as carbon source is referred hereafter as MnCO 3 (s) and MnCO 3 (p), respectively. The synthesized products were characterized by powder X-ray diffraction, scanning electron microscopic and transmission electron microscopic studies. Microscopic studies revealed that MnO 2 possesses micro-flower-like morphology constructed by self-assembled nano-petals. While the morphology of MnCO 3 (s) is sub-micron size particles of different shape, the morphology of MnCO 3 (p) is crystalline particles of 10-20 nm dia. The capacitive characteristics of MnO 2 , MnCO 3 (s) and MnCO 3 (p) were evaluated in aqueous 0.1 M Mg(ClO 4 ) 2 electrolyte between 0 and 1 V using cyclic voltammetry and galvanostatic charge/discharge cycling. Specific capacitance (SC) values of 216 and 296 F g −1 obtained for MnCO 3 (s) and MnCO 3 (p) are 35 and 85 % higher than SC value of 160 F g −1 obtained for MnO 2 , respectively. Besides better capacitive storage characteristics, MnCO 3 (s) and MnCO 3 (p) have also exhibited better rate capability and cycle life than MnO 2 .

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Section: Resultssupporting

confidence: 89%

Metal carbonates: alternative to metal oxides for supercapacitor applications? A case study of MnCO3 vs MnO2

Devaraj

Vardhan

Liu

et al. 2015

J Solid State Electrochem

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“…As an energy-storage device, supercapacitor with the advantages of high power density, short charging time, low cost and long life cycle has attracted considerable attention in recent years [2].There are three type of materials to fabricate the electrode of supercapacitors: carbon materials [3], transition metal oxides [4], and conducting polymer [5,6]. Recent research efforts have been focused on to synthesize nanocomposite based on conducting polymers.…”

Section: Introductionmentioning

confidence: 99%

PEDOT: PSS/PEDOT composite film for high performance electrochemical electrode

Lü

Chen

Mao

et al. 2017

AIP Conference Proceedings

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“…Although hydrous RuO 2 exhibits a high specific capacitance (788 Fg −1 ), high cost and toxicity of RuO 2 limit its application [2]. MnO 2 is an alternative, promising electrode material for ECs as it is electrochemically active, inexpensive, abundant in nature, and environmentally friendly .…”

Section: Introductionmentioning

confidence: 99%

Mesoporous MnO2 synthesized by hydrothermal route for electrochemical supercapacitor studies

Nayak

Munichandraiah

2012

J Solid State Electrochem

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Poorly crystalline mesoporous MnO 2 , which is suitable for supercapacitor studies, is synthesized from neutral KMnO 4 aqueous solution by hydrothermal route. But it requires a high temperature (180°C) and also a long reaction time (24 h). Addition of a tri-block copolymer, namely, poly(ethylene glycol)-block-poly(propylene glycol)-blockpoly(ethylene glycol) (P123), which is generally used as a soft template for the synthesis of nano-structured porous materials, reduces the hydrothermal temperature to 140°C and also reaction time to 2 h. When the reaction time is increased, the product morphology changes from nanoparticles to nanorods with a concomitant decrease in BET surface area. Also, the product tends to attain crystallinity. The electrochemical capacitance properties of MnO 2 synthesized under varied hydrothermal conditions are studied in 0.1 M Na 2 SO 4 electrolyte. A specific capacitance of 193 Fg −1 is obtained for the mesoporous MnO 2 sample consisting of nanoparticle and nanorod mixed morphology synthesized in 6 h using P123 at 140°C.

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Performance of supercapacitor with electrodeposited ruthenium oxide film electrodes—effect of film thickness

Cited by 169 publications

References 10 publications

Metal carbonates: alternative to metal oxides for supercapacitor applications? A case study of MnCO3 vs MnO2

Metal carbonates: alternative to metal oxides for supercapacitor applications? A case study of MnCO3 vs MnO2

PEDOT: PSS/PEDOT composite film for high performance electrochemical electrode

Mesoporous MnO2 synthesized by hydrothermal route for electrochemical supercapacitor studies

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